Literature Reference: 玄之又玄，众妙之门。—— 《道德经》 Mystery upon mystery, the gateway to all wonders. Source from 'Dao De Jing'.
玄: Cultivated and erudite.
Meaning: Profound and mysterious, symbolizing the depth and wisdom of the universe.
沈玄 (Shen Xuan)
A Ming Dynasty physician and poet from Wuxian, known for his medical expertise and poetry collection 'Qianzhai Ji'.
郑玄 (Zheng Xuan)
a minister and Confucian scholar of the Eastern Han dynasty, known for his comprehensive mastery of classic texts and founding the 'Zheng School' of thought.